Selecting a visualization

Key aspects of selecting visualization

There are many aspects of visualization of data. Many times we tend to get confused how to visualize a data and convey it either as meaningful insight or information which can be inferred upon. The selection visualization is critical from the following context:

  • Easy of inference
  • Ability to gain insights from visuals
  • Helps in decision making
  • Infer outliers and enable to act
  • Simplify complex data situation
  • Convey a story about the data

Case Study:

You are waiting in a railway station for a train, you know your train number you also have a planned time of departure but you wanted to understand the following while you wait:

  • Will the train be on time ?
  • Where is it currently located ?
  • Any possibilities of delays expected ?
  • What has been the history of timely arrivals in the past ?
  • How long the train will halt in my current station ?
  • Do we have accurate positioning of the coaches ?
  • Am I standing at the right position to board my coach ? If not how far or how many steps I should I walk to reach the correct position ?
  • Based on current speed of train what is the predictability of reaching my destination on planned time ?
  • Does the coach I’m planning to board has facility for differently abled ?

So when we want to provide visualization to the end user we need to understand the Context/Questions to be answered/availability of data. Need to understand what is to be compared, filtered, correlated , data over time.

Where to look for some ideas:

Data Visualization Catalogue – https://datavizcatalogue.com/blog/chart-selection-guide/

https://www.sqlbi.com/ref/power-bi-visuals-reference/